The couple stars in a new sexy Skims photo shoot for its wedding shop ... Champion wears a white bridal corset with flowy boyshort underwear, stockings, and white pumps, while Schwarzenegger ...

Gomez wore it with a pair of strappy white Aquazzura pumps and a bold red lip, but left most of the jewelry at home. She doubled down on the white theme (literally) in her second look of the day.